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Freelance Java Developer Government Jobs (NOW HIRING)

Comtech Global

Senior Java ESB Developer

Moss Point, MS

$47.50 - $60.75/hr

Senior Java ESB Developer Location: Jackson, MS (100% Onsite) Duration: 36 Months Start Date: ASAP ... Government/Public Sector Projects * Human Services Programs * Large-scale System Integrations Soft ...

SysMind Tech

Java Developer

Cary, NC · On-site

$48.50 - $62.75/hr

... Spring, microservices , java , JPA Azure devOps yaml pipeline creation, CI/CD process for ... Can we use Freelancer? : No * Named Job Posting? (if Yes - needs to be approved by SCSC) : No

Contact Government Services LLC

Java Developer

Baltimore, MD · On-site

$50.75 - $65.50/hr

Java Developer Employment Type: Full-Time CGS is seeking a Java developer/programmer to join a team ... CGS brings motivated, highly skilled, and creative people together to solve the government's most ...

Contact Government Services LLC

Java Developer

Philadelphia, PA · On-site

$51.50 - $66.50/hr

Java Developer Employment Type: Full-Time CGS is seeking a Java developer/programmer to join a team ... CGS brings motivated, highly skilled, and creative people together to solve the government's most ...

Contact Government Services LLC

Java Developer

Rockville, MD · On-site

$52 - $67.25/hr

Java Developer Employment Type: Full-Time CGS is seeking a Java developer/programmer to join a team ... CGS brings motivated, highly skilled, and creative people together to solve the government's most ...

Contact Government Services LLC

Java Developer

Tampa, FL

$46.50 - $60/hr

Java Developer Employment Type: Full-Time CGS is seeking a Java developer/programmer to join a team ... CGS brings motivated, highly skilled, and creative people together to solve the government's most ...

Contact Government Services LLC

Java Developer

Baltimore, MD · On-site

$50.75 - $65.50/hr

Java Developer Employment Type: Full-Time CGS is seeking a Java developer/programmer to join a team ... CGS brings motivated, highly skilled, and creative people together to solve the government's most ...

Contact Government Services LLC

Java Developer

Austin, TX · On-site

$50.50 - $65.50/hr

Java Developer Employment Type: Full-Time CGS is seeking a Java developer/programmer to join a team ... CGS brings motivated, highly skilled, and creative people together to solve the government's most ...

Contact Government Services LLC

Java Developer

Fairfax, VA · On-site

$52.50 - $68/hr

Java Developer Employment Type: Full-Time CGS is seeking a Java developer/programmer to join a team ... CGS brings motivated, highly skilled, and creative people together to solve the government's most ...

Contact Government Services LLC

Java Developer

Boston, MA · On-site

$55.50 - $71.75/hr

Java Developer Employment Type: Full-Time CGS is seeking a Java developer/programmer to join a team ... CGS brings motivated, highly skilled, and creative people together to solve the government's most ...

Contact Government Services LLC

Java Developer

Queensbury, NY · On-site

$51.25 - $66.25/hr

Java Developer Employment Type: Full-Time CGS is seeking a Java developer/programmer to join a team ... CGS brings motivated, highly skilled, and creative people together to solve the government's most ...

Contact Government Services LLC

Java Developer

Baltimore, MD · On-site

$50.75 - $65.50/hr

Java Developer Employment Type: Full-Time CGS is seeking a Java developer/programmer to join a team ... CGS brings motivated, highly skilled, and creative people together to solve the government's most ...

Contact Government Services LLC

Java Developer

Chantilly, VA · On-site

$52.25 - $67.50/hr

Java Developer Employment Type: Full-Time CGS is seeking a Java developer/programmer to join a team ... CGS brings motivated, highly skilled, and creative people together to solve the government's most ...

Contact Government Services, LLC

Java Developer

Dallas, TX

$50.50 - $65.25/hr

Java Developer Employment Type: Full-Time Department: Information Technology CGS is seeking a Java ... CGS brings motivated, highly skilled, and creative people together to solve the government's most ...

Contact Government Services, LLC

Java Developer

Detroit, MI · On-site

$140K - $220K/yr

Java Developer Employment Type: Full-Time Department: Information Technology CGS is seeking a Java ... CGS brings motivated, highly skilled, and creative people together to solve the government's most ...

Contact Government Services, LLC

Java Developer

Atlanta, GA

$49 - $63.50/hr

Java Developer Employment Type: Full-Time Department: Information Technology CGS is seeking a Java ... CGS brings motivated, highly skilled, and creative people together to solve the government's most ...

Contact Government Services, LLC

Java Developer

Dallas, TX · On-site

$140K - $220K/yr

Java Developer Employment Type: Full-Time Department: Information Technology CGS is seeking a Java ... CGS brings motivated, highly skilled, and creative people together to solve the government's most ...

Contact Government Services, LLC

Java Developer

Albany, NY

$50.75 - $65.50/hr

Java Developer Employment Type: Full-Time Department: Information Technology CGS is seeking a Java ... CGS brings motivated, highly skilled, and creative people together to solve the government's most ...

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All JobsFreelance Java Developer Government Jobs

Freelance Java Developer Government information

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$15

$56

$77

How much do freelance java developer government jobs pay per hour?

As of Jun 4, 2026, the average hourly pay for freelance java developer government in the United States is $56.70, according to ZipRecruiter salary data. Most workers in this role earn between $49.04 and $63.46 per hour, depending on experience, location, and employer.

What is the difference between Freelance Java Developer Government vs Freelance Java Developer Private Sector?

AspectFreelance Java Developer GovernmentFreelance Java Developer Private Sector
CredentialsTypically requires security clearances and government-specific certificationsGenerally requires standard Java certifications and portfolio
Work EnvironmentGovernment agencies, often in secure or regulated settingsPrivate companies, startups, or consulting firms
Employer & Industry UsagePublic sector projects, government contractsCommercial projects, private sector clients
Search & Comparison IntentSeeking government-specific freelance Java rolesLooking for private sector freelance Java opportunities

Freelance Java Developers working with government agencies often need security clearances and government-specific certifications, working in secure environments on public sector projects. In contrast, private sector freelance Java developers typically focus on commercial projects, requiring standard Java skills and certifications. The choice depends on your credentials, work environment preferences, and the type of projects you aim to pursue.

What cities are hiring for Freelance Java Developer Government jobs? Cities with the most Freelance Java Developer Government job openings:
What are the most commonly searched types of Java Developer Government jobs? The most popular types of Java Developer Government jobs are:
What states have the most Freelance Java Developer Government jobs? States with the most job openings for Freelance Java Developer Government jobs include:
Freelance Java Developer Government jobs near you
Senior Java ESB Developer

Senior Java ESB Developer

Comtech Global

Moss Point, MS

$47.50 - $60.75/hr

Other

Posted 8 days ago

Job description

Position: Senior Java ESB Developer

Location: Jackson, MS (100% Onsite)

Duration: 36 Months

Start Date: ASAP

Direct client

 

Position Overview

We are seeking an experienced Senior Java ESB Developer to support enterprise integration initiatives and modernization efforts. The selected candidate will be responsible for designing, developing, and supporting mission-critical applications and enterprise service integrations using Java, JEE, JBoss Fuse, REST/SOAP services, and modern API frameworks.

This role requires a strong background in Enterprise Service Bus (ESB) architecture, Service-Oriented Architecture (SOA), microservices, API development, and enterprise application integration.

Responsibilities

  • Design, develop, and maintain enterprise Java applications using Java 17+, JEE, and Spring Boot.
  • Build and support RESTful and SOAP-based web services.
  • Design and implement enterprise integration solutions using JBoss Fuse and ESB technologies.
  • Develop scalable microservices and event-driven architectures.
  • Collaborate with business stakeholders to gather, analyze, and translate business requirements into technical solutions.
  • Create and maintain API gateways, service orchestration, and messaging solutions.
  • Develop and optimize SQL queries, stored procedures, and database integrations.
  • Troubleshoot production issues and provide root cause analysis.
  • Participate in Agile ceremonies including sprint planning, standups, retrospectives, and backlog refinement.
  • Develop technical documentation, design specifications, and deployment procedures.
  • Ensure application performance, security, scalability, and maintainability.
  • Work closely with cross-functional teams to support system enhancements and modernization efforts.

Required Qualifications

  • 10+ years of hands-on Java development experience.
  • Strong expertise in Java 8 through Java 17.
  • Advanced Object-Oriented Design and Programming experience.
  • Extensive experience with Java Enterprise Edition (JEE).
  • Strong knowledge of Spring Framework and Spring Boot.
  • Experience with Dependency Injection (DI), IoC, and SOLID design principles.
  • Advanced experience developing REST APIs and SOAP Web Services.
  • Strong SQL development and database integration experience.
  • Experience designing enterprise-scale applications and integration solutions.
  • Experience gathering business requirements and providing technical leadership.

Required Technologies

  • Java JDK 17+
  • JEE
  • Spring Framework
  • Spring Boot
  • REST APIs
  • SOAP Web Services
  • SQL
  • JSON/XML
  • Maven/Gradle
  • Git

Preferred Skills

  • JBoss Fuse
  • Enterprise Service Bus (ESB)
  • Service-Oriented Architecture (SOA)
  • Apache Camel
  • EJB
  • API Gateway Technologies
  • Event-Driven Architecture
  • Message Queues
  • Microsoft SQL Server
  • Cloud Platforms (AWS, Azure, Google Cloud Platform)
  • Unix/Linux Administration
  • Docker
  • Kubernetes
  • CI/CD Pipelines
  • Jenkins
  • GitHub Actions
  • Azure DevOps

Nice-to-Have Experience

  • JBoss Enterprise Platform
  • WebLogic
  • WebSphere
  • Enterprise Middleware Solutions
  • Government/Public Sector Projects
  • Human Services Programs
  • Large-scale System Integrations

Soft Skills

  • Strong communication and presentation skills.
  • Ability to interact with technical and non-technical stakeholders.
  • Excellent analytical and problem-solving abilities.
  • Ability to work independently and within Agile teams.
  • Strong documentation and knowledge-sharing skills.

 

Keywords

Java Developer, Senior Java Developer, Java Architect, Integration Developer, ESB Developer, JBoss Fuse Developer, SOA Developer, Spring Boot Developer, REST API Developer, SOAP Services, Enterprise Integration, Middleware Developer, Microservices Architect, API Gateway, Event Driven Architecture, Apache Camel, JEE Developer, Backend Developer, Government IT, Public Sector IT.

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